26921440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 80142048

約数和(自身を除く): 53220608

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 43, 52, 56, 65, 70, 80, 86, 91, 104, 112, 130, 140, 160, 172, 182, 208, 215, 224, 260, 280, 301, 344, 364, 416, 430, 455, 520, 559, 560, 602, 688, 728, 860, 910, 1040, 1118, 1120, 1204, 1376, 1456, 1505, 1720, 1820, 1849, 2080, 2236, 2408, 2795, 2912, 3010, 3440, 3640, 3698, 3913, 4472, 4816, 5590, 6020, 6880, 7280, 7396, 7826, 8944, 9245, 9632, 11180, 12040, 12943, 14560, 14792, 15652, 17888, 18490, 19565, 22360, 24037, 24080, 25886, 29584, 31304, 36980, 39130, 44720, 48074, 48160, 51772, 59168, 62608, 64715, 73960, 78260, 89440, 96148, 103544, 120185, 125216, 129430, 147920, 156520, 168259, 192296, 207088, 240370, 258860, 295840, 313040, 336518, 384592, 414176, 480740, 517720, 626080, 673036, 769184, 841295, 961480, 1035440, 1346072, 1682590, 1922960, 2070880, 2692144, 3365180, 3845920, 5384288, 6730360, 13460720, 26921440]

約数ペア:

[(1, 26921440), (2, 13460720), (4, 6730360), (5, 5384288), (7, 3845920), (8, 3365180), (10, 2692144), (13, 2070880), (14, 1922960), (16, 1682590), (20, 1346072), (26, 1035440), (28, 961480), (32, 841295), (35, 769184), (40, 673036), (43, 626080), (52, 517720), (56, 480740), (65, 414176), (70, 384592), (80, 336518), (86, 313040), (91, 295840), (104, 258860), (112, 240370), (130, 207088), (140, 192296), (160, 168259), (172, 156520), (182, 147920), (208, 129430), (215, 125216), (224, 120185), (260, 103544), (280, 96148), (301, 89440), (344, 78260), (364, 73960), (416, 64715), (430, 62608), (455, 59168), (520, 51772), (559, 48160), (560, 48074), (602, 44720), (688, 39130), (728, 36980), (860, 31304), (910, 29584), (1040, 25886), (1118, 24080), (1120, 24037), (1204, 22360), (1376, 19565), (1456, 18490), (1505, 17888), (1720, 15652), (1820, 14792), (1849, 14560), (2080, 12943), (2236, 12040), (2408, 11180), (2795, 9632), (2912, 9245), (3010, 8944), (3440, 7826), (3640, 7396), (3698, 7280), (3913, 6880), (4472, 6020), (4816, 5590)]